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From: Peter Zijlstra <peterz@infradead.org>
To: Mark Hills <mark@pogo.org.uk>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>,
	linux-kernel@vger.kernel.org
Subject: Re: cgroup: rmdir() does not complete
Date: Thu, 09 Sep 2010 13:50:17 +0200	[thread overview]
Message-ID: <1284033017.402.8.camel@laptop> (raw)
In-Reply-To: <alpine.NEB.2.01.1009091234230.26366@jrf.vwaro.pbz>

On Thu, 2010-09-09 at 12:36 +0100, Mark Hills wrote:

> I am still finding the problem incredibly hard to reproduce, so I'd like 
> to observe as much data as possible from the current case before 
> rebooting. If I could capture some kind of stack trace in the kernel for 
> the running process that would be great, any suggestions appreciated.

echo l > /proc/sysrq-trigger

another thing you can do is run something like: perf record -gp $pid
which will give you a profile of that task.

  reply	other threads:[~2010-09-09 11:50 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-26 15:51 cgroup: rmdir() does not complete Mark Hills
2010-08-27  0:56 ` Daisuke Nishimura
2010-08-27  1:20   ` Balbir Singh
2010-08-27  2:35   ` KAMEZAWA Hiroyuki
2010-08-27  3:39     ` Daisuke Nishimura
2010-08-27  5:42       ` KAMEZAWA Hiroyuki
2010-08-27  6:29         ` KAMEZAWA Hiroyuki
2010-08-30  7:32           ` Balbir Singh
2010-08-30  9:13         ` Mark Hills
2010-09-01 11:10         ` Mark Hills
2010-09-01 23:42           ` KAMEZAWA Hiroyuki
2010-09-02  9:45             ` Mark Hills
2010-09-09 10:01             ` Mark Hills
2010-09-09 10:09               ` Balbir Singh
2010-09-09 11:36                 ` Mark Hills
2010-09-09 11:50                   ` Peter Zijlstra [this message]
2010-09-09 23:04                     ` Mark Hills
2010-09-09 23:43                       ` KAMEZAWA Hiroyuki
2010-09-10  2:16                       ` KAMEZAWA Hiroyuki
2010-09-10  4:05                         ` Daisuke Nishimura
2010-09-10  4:11                           ` KAMEZAWA Hiroyuki
2010-09-10  7:28                         ` Mark Hills
2010-09-10  7:33                           ` KAMEZAWA Hiroyuki
2010-09-10  7:51                             ` Mark Hills
2010-08-27  1:25 ` KAMEZAWA Hiroyuki
2010-08-30  9:25   ` Mark Hills

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